kieserlingh



6 Sheets-Sheet 1.

(No Model.)

e. KIBSBRLING. APPARATUS FOR MAKING HOLLOW ARTICLES PROM PLASTIC MATERIAL.

Patented Sept. 19, 1893.

WIE,-.. .n

r l IIIIIIIIII .A

(No Model.) 5 Sheets-fSheet 2.

' R. KIESERLING. APPARATUS POR MAKING HULLOW ARTICLES PROM PLASTIC MATERIAL".

No. 505,362. Patented sept. 19, 1893.

(No Model.) f 5 sheets-sheet 3.

R. KIE-SERLING. r APPARATUS FOR MAKING HOLLOW' ARTIGLES FRM PLASTIG MATERIAL. l I No. 505,362. Patented'Sept. 19, 1893.V

(No Model.) 5 sheets-fsneet 4. R. KIESERLING.

APPARATS 'POR MAKING HOLLOW ARTICLES PROM PLASTIC MATERIAL.

No. 505,362. Patented sept. 19, 189s.

@No Model.) A 5 Sheets-sheen A5.

R. KIESERLING.

APPARATUS POR MAKING HOLLGW ARTICLES PROM PLASTIC MATERIAL.

I No. 505,'362 Patented Sept. 19, 1893. i U 1f U NITED STATES PATENT OFFICE.

ROBERT` KIES'ERLING, OF HAMBURG, GERMANY.

APPARATUS FOR MAKING HOLLOW ARTICLES FROM PLASTIC MATERIAL.

.SPECIFICATION forming part of Letters Patent No. 505,362, dated September 19,1893. Application filed October 22, 1891. Serial No. 409,516. (No model.)

To a/ZZ whom t may concern.-

Be it known that I, ROBERT KIESERLING, of the free state of Hamburg, German Empire, have invented new and useful Improvements in Apparatus for Making Hollow Articles from Plastic Material, of which the fol-K apparatus for small hollow-ware.' Fig. 2, isl

a cross section through Fig. l. Fig. 3, is a cross section through a part of the securing device for the forming-core, and Fig. 3a represents a broken front view of the same. Fig. 3" is a part end view of Fig. 3a. Figs. at and 4a, are detail views of` aconveyer or carrier bar. Fig. 5, is a moditiedform of formingcore. Fig. 6 is a face view and a section of a Amodiled form of core. l Fig. 7is a longitudinal section of a machine fon larger hollow articles. Fig. 8 is a plan Iview of the same. Fig. 9 is an end View of part of Fig. '7. Figs. 10 and l1 are detail views on an enlarged scale of securing devices for the core.

In the drawings the reference letterT, designates a table Vtop whichfis supported on a suitable strong frame. This table top serves as a foundation for the apparatus hereinafter described.

The lettera designates a jointed or flexible plate consisting of a number of staves or slats united by exible bands, and on this jointed or"` flexible plate a is supported a plate of iiexible `material cl. Both these plates a and d are movable longitudinally and are guided in their movement by guide-pieces b (Fig. 2). A perforated metal plate, wire cloth or equivalent material e, is placed on the upper surface of the plate d. Above the perforated plate e is a roller comprising a hollow core K having a cylindrical, oval, three cornered, square or irregular cross-section, according to the interior shape to be given the article to be manufactured. On each end this core is provided with heads f, (Figs. 3, 3 and 3b) which extend outwardly from the core a `distance equal to twice the thickness of the article to be produced. The shape of the head plates corresponds to the shape of the article to be e, the hooked ends of which engage and l confine the latches 7c which engage the angle irons u and thus lock the meeting ends of the core plate o together.

In the arrangement shown in Fig. l0 the two angle-irons u are Secured to the meeting edges of the plate o and a tube m provided with grooves is inserted between the angle irons the ends of the angle-irons engaging the grooves therein.V

. Passing through the tube m is a bar W which is engaged by hooks pivoted to the angle irons in such manner as to lock the meeting ends of the Vcore plate.

By loosening the locking device the core can be contracted and the article which has been moldedthereon withdrawn without danger of injuring it. The core is placed on the same shaft With a sheave s which is operated by av winding; apparatus h and a counterweight z', attached vtoa cord Z passing over another sheave s.

The slatted-plate a is secured to the head plate of the core by means of the carrier or bar g, (Figs. l, 4, lO, and 11,) whereby upon revolving the core by the'means described, the slatted-plate a and with it the flexible plate d, the wire cloth or perforated metal plate c and theplastic material m is wound around the core, the slatted-plate resting on the extended head-plates f, without actually touching the core.

For the manufacture of articles of larger IOO cross-section I provide an apparatus as shown hinge connection J with the frame work at one end and at the other end is connected to the upright standards S', by a spiral spring F, one end of which is secured to the table top and the other end of which engages a hook on the said standards S. The height of the standards may be adjusted by means of a screw U. The material manipulated by rolling, kneading, mangling, or in eqirivalent manner, will be placed in a continuous flat layer upon the slatted plate a, the above-mentioned plate e preventing the sticking ot the I The Winding-l material to the slatted plate. apparatus is then slowly revolved, after the slatted plate has been connected to the headplates f of said plate by means of a suitable number of carriers g. By the. revolving of the head-.plate as well as the core, the slatted plate will gradually be wound around the head'` plates, which operation will be suspended as soon as the two ends of the material, also wound by this operation, abut:

against each other.. The crevice created must be closed by the same kindof material or some similar connectingvr material. The. shape which has been obtained, will correspend exactly in cross section to the coreand head-plates,y as on account of the close contact, of the slatted platej on the head-plate the entire space between the connecting-line ofthe; edges of the head-platesand thecoveringr-surface. ot the core is entirely till'ed' with compressed material. connecting-line with the edges. of the headplateis produced by the slatted plate. Alccordifn g as this line is astraightor broken one,

the. corewill' showl by its longitudinal' lines either smooth or curved surfacesand in this manner, for instance, it will be easy to apply strengthening ribs, and depressions or hoops canal-'s0 be produced. When the arran-gemen t.

justdescribed, has assumed this conditiomthe oppositely arranged carrier-bars are drawn together, and therebyA the `unity ofthe mate.-

rial'` with the corecan be still more aug= mentedJ The slatted plate andi the' ll'exibl'e plate are thenvremoved, and the core withthe plasticn material adhering thereto` is exposed,

according to the nature of the'plastc matei Atter-asuicient j exposure the coupling otlthe core is released;

rial, to the air or to ire.

The above-mentioned the core is-v collapsed or folded up, and can then be` drawn out of the finished article. The completed article will show on its inner surface a perfectly smooth and polished upper surface, and it can `then be smoothed correspondiugly.r Theobject of the yielding table-top is simply, that in producing articles, which are not cylindrical, or are of more or lessirregular cross-section, the contact of the slatted plate with the head plates, during the operation of the machine is insured.

What I claim is l. An apparatus for manufacturing hollow articles of plastic material, consisting of a lcore, a shaft in the corea table, a slatted plate secured to the core and adapted to rest on the table, a sheet; of foramino-us material i extending overtheslatted plate and on which; l the plastic substance.- is placed, andi mecha-n- 5 ism connected with the shaft of the core for f Winding'the slatted plate, the foraminous inaterial, and the plastic substance upon the core, j substantiall y as described.

2"., An apparatus for the' manufacture of arg ticl'esof plasticmaterial, consisting of' a core, a slatted plate secured thereto, a sheet 0f fog raminous material extendingover the slatted "plate and on which the plastic substance is placed, and means for winding the slatted plate, the foraminous material, and the plasf tic substance upon the core, substantially as l described. 8'. In an apparatus for-the manufacture of hollow articles. of plastic material the combii, nation of ayieldifngtable-top, a core, a slatted j plate secured theretoand-` means forh winding;

sai'dzpl'ate upon said; core.v

y In an'. apparatus: for the' manurliac-tture ot hollow articles' of plastic materiahthecombif: nation with a; yielding tabletop,4 a core1:l'1e` I coIre-healsr secured thereto, a slatted plate-sa cu'red to= said core, and means; for" Winding said' plate upon said core, substantiallyasdef scribed.,

V In` WitnessWhereof-l have hereunto set my- 2 hand. inl presence of two witnesses.

Vitnesses:

PAUL FISCHER, F., FRITSCH. 

